The system of equations are
.
Graph:
\Graph the system of equations.
\
Observe the graph:
\The intersection points are
and
.
Find the intersection points of system of equations
.
Substitute
in
.

and 
and
.
For
,
.
For
,
.
Therefore, the intersection points are
and
.
Graph of the system of equations is
\
The intersection points are
and
.